Thomas james tap



Specification ol' Letters lmtzmt.

lsotolltod flopt "El, ll'lllll).

implication lcll Moron 4, 1919. Se-.rlal No. 'lllfwll.

To all william 'it' may @omo/rl Bo it lmovm tlmt l...) lolo-At ,lfltlmoGillo LIN, J 1*., o. Sillijcot o. ,lino lling ol lt o'lilitl,i'oticlingr in llomlon. lloglond, hoyo in noted certain now :unl osolullmpi'ovolima'lto im. tltoblllf/.frz l" .tox'oplzmos. of which the tollowing is o; :apto lotion.

'.lllra illvolitioi'l i :tot1 inlpro vamente in. olf. relatingtostlilnilizor'xs for" ool'oplooosi :mtl hoo lol.' its objoot to provide asimplo Lievito opomtofl by whirl-pressure for @Hosting tho roquiioclstabilization lt llos boloio boem pi'opoofl to uso o. poo dulum fol"this porpooo, but according; to .lo p'oseiit iiiwntioll, thor@ iscombined 'with :in automatic oolitrolsticl carried by o. mili vorsoljoint oom' ono ond :mtl having o foto Way von@ at tho other7 tho bloclosof which oro disposed. in vertical plaines two pointing-3; foro and oftoncl the other two to apposito siclos of the nmol'ilno, two .littoraloorlogs;

' `which 'tomi to koop tho stick uprigljit in o is o :fmuovoy von@ Clowing two ol" its lil .o 01 c2 sot pomllol with tho luie of tloo W.. um

Asol joint. llt tlm "top of the ooiltl'ol plone troosvoio to tllodirection of moto-- mont ont tho .loool llo, two :springs ol. o fw wingzmrl n, stop wloi la. tr 1d to koo) tho st i1 p right in u. voix o' umWllc i lo lgnilwillol to thocli'oction of l wol, moms lor opfozatlvoljycomiectlrlg the Stick to tho o' lovzttor to cow tirol the latter by loronml. olt 1x1ovol1lmlto, incl menno toi.' oporotlvoly connecting tliostick'. to tlio ailerons.; lor ooutrollng tho tomo by lzitel'ol movomo soll tho stick.

Acoollliligg' to om :olotlnod oli-carrying; ont this invontion. otfliogi'onmmtioolly iofll-- ootod in tlm oooommnyilm; drawing, tliolo losituattoclot tlm :lfloot olfftliot aeroplano oz.' :it any otherco'nvoooot point, on outomotio control-stiel; A. supportod :it B by :tuniv w n.) indicated, ot D, :md its two other Modos of 0* sot atright-ongles to tlm` lino ol the win Tho stitli; A. ottomila flown belowtlio ulilvosol joint B mad ira there oomiootofl to :loiu springs E El:und F Fl iospootivoly,' wlioloolf tllo :springs lil lil oro iii linowil-.l1 tlio lilorfloo o3 al' amil tlm spl-ings l? li in lino with tlmloloclo's c1 o2. .l`l1o spl'ii'ags oro lio tolmion uml. tho spring' E isconnected by :i flexible lino or cable l?? to :t follow E, :md thesprings F F1 :we similarly oonnootod to rollers FL und F3 rospectvolBelow the universal joiiltli, Stick has operativo commotion by a cableEl with tlio levotor, not shown in the drawing. This collie. oxtomlsbackward from the ffl/iol; iii tho cl'lootion oil motolliol'lt ol thoo,oxoplonoy to that lmoltwortl movomont ot the. st'ol: will @ivo oliloct pull upon. it and than; mit@ tlio olovotor. ...flliotlioif ooblo.llf' extends .from

the loool( of the stiel: olnovo the joint ll t.ilmils .itt lflo ott-llosticht.; tlm ailerons om not oliown .in tlio throwing;

Tho opstal-.ion of this low@ lt will lao lfrol'n the bow that the oliootof this Stabilizer, il lett to itself, is to ottuso tlao machine toalways travel/'ot o consti-int spoed, wliloli if tllo @mgmt-power ismomma ot that which is iro. uimcl for tmweb ing on tlm lovol (mici. this:nominally would lio l2-llo onto) will it o. clmlniiixgfonglo. To toom@this ongle tlloi'olfoio, or to fly loi/ol, oi* ljo tlofsooml, the pilot,mulets lie olio'ugoi-z tho anglo by his omi, @mmol-stick, will nilo esoby tlnfoltling tho cugino off oy tlcljustrnem of tho motion of thostobWelkom-ings. which will ol solute thong@ his spatt. of llght.

to tho loja/ol position :tml its spoofl olmo mom brought to tho nomini,so tlm-t tlie'stiolill again nssmnefs tho position which it ooouf pwdwlmi tho notion of tlio sprlngs and tht If tho'. y

vmmlqu'osonro ou it were. balanced.

` The otolf; is also oomloototl by cables .ltl :tml lt .ld11 me oo .iffl. is kopt im on op@ Sli l; tho oloviitol with tlm .1^o- Y :lult thattlio lruiolimo will lio oogolto brought `.moolllioo Should commencetofIioSo-flivo, tho

spoed will increase., und time@ tllofwindproo son. on tho blades c1 o2will toreo tho top of thostlol back und thus nous@ the cable E* gintact? to be pulled upon to raise the elevator,

whereby the machine is again brought to the level and the speed madenormal. Similarly, should the machine side-slip to the left (as viewedby the pilot) the induced wind-pressure on the blades c3 c4 will causethe ailerons, which maybe cross-connected, to be operated by the cableF5 so as to raise the left-hand side of the machine, or if sideslipoccurs in the opposite direction, the corresponding induced windpressureon the same blades c3 ci, but on the opposite sides, will cause theailerons to be appropriately operated by the pull on the cable F* toraise the right-hand side of the machine. From the above it will be seenthat when changn ing the course by ruddering, the machine automaticallybanks itself.

It will4V be appreciated that the arrangement shown in the drawing isentirely dian grammatic and the details can be varied as required forpractical purposes. Preferably the ailerons would be eross-connected sothat when one is raised the other would be lowered.

Any convenient means may be provided for rotating the drums E3, 2, F3,and for holding them in the position to which they are set. Preferablysuch means would take the form of some pawLand-ratchet device, pedalorlever-operated, so thatea'ch drum could be rotated Stepby-step in eitherdi rection to increase or decrease the tension on the springs. Usuallyspeaking, the rollers F2 F3 would not require to be moved after thefirst adjustment, but the roller E3 would need to be 1re-adjustedwhenever the normal speed of the machine was to be in creased ordecreased; thus if it were desired to Hy at a greater speed than thatfor which the machine is eet, the spring E would need to be tensioned upso that the increase of wind-pressure upon. the blades c1 c2 would onlykeep the stick A in the position 'for level flying; automatic adjustmentwould then occur when the speed exceeded this higher speed for which themachine is set or dropped below it.

What I claim as my inventionand desire to secure by Letters Patent iszl. In an aeroplane, a stabilizer comprising the combination With anautomatic control stick which is universally mounted and carries afour-way vane whereoil two of the blades are located in a fore-and-aftplane and the otherl two are located in a transverse vertical plane atright-angles to the former plane, of a plurality of springs which areconnected each at one end to the stick and at their other ends to theaeropl. ne, two of which springs are arranged lateru ally on oppositesides ot the stick and tend to keep the stick upright in the saidtransverse plane, and a third springV is arranged in a ore-andaitdirection and tends to keep the stick upright in the said fore and-aftplane at a predetermined speed oi the aeroplane, means for opeuativelyLconnecting the stick 'to `the elevator of the aeroplane to control thesame'b. fore- 70 and-aft movements, and means for operatively connectingthe stick to the ailerons of the aeroplane for controlling the same bylateral movements of the stick.

2. In an aeroplane, a stabilizer comprising the combination withanautomatic control-stick which is universally mounted and carries atour-way vane whereof two of the blades are located in a ore-and-aftplane and the other two are located in a transverse vertical plane atright-angles to the y former plane, of two opposed lateral springs whichare connected each at one end to the stick and at their other ends tothe aeroplane and tend) to keep the stick'upright 85 5 in thesaid'transverse plane, and two opposed fore-andaft springs which arecon. neeted each at one end Vto the stick and at 'their other ends tothe aeroplane and tend to keep the stick upright in the said forefandaftplane at a predetermined speed of thev aeroplane, means for operativelyconnecting the stick to the elevator of lthe aeroplane A to control thesame by oreand-aft movements, and means for operatively connect 95 ingthe stick to the ailerons of the aeroplane for controlling the same bylateral move- .ments of the stick.

3. In an aeroplane, a stabiliser comprising the combination with anautomatic con 100 trol-stick which is universally mounted and carries afour-way vane whereof two of the blades are located .in a for and-aftvplane and the other two are located in a transve'se vertical plane atright angles to the 105 former plane, of a plurality of Springs whichare connected each at one end to the stick, two of which springs areconnected at their other ends to the aeroplane, and are arrangedlaterally on opposite sides of the stick and tend to keep the stickiipright in the said transverse plane, a tensionregulating device havingone end connectedy to the aeroplane and' its other end connected to theother end of a third spring which is arranged ina 'fore-enduit directionand tends to kee the stick upright in the said foreand-a t plane at apredetermined speed of the aeroplane, means for operatively connectingthe stick to the elevator of the aenoplane to control the same byfore-andaft movements, and means for operativelycon nectingthe stick tothe ailerons of the' aeroplane for controlling the same by lateralmovements of the stickn 4. In an aeroplane, a. stabilizer comprising thecombination with an automatic control-stick which is -universallymounted and carries a tour-way vane whereof two of the blades arelocated in a fore-andati; plane and the other two are located ln` :Ltrans* verse 'vertical plane nbriglxffzmglos to 'the former plane, 0ftwo opposed later-xl springs which are connected each et one ond to illestick, two tensioll-rcguloting devices conneo'ing each the other ond olone of said springs to the aeroplane, two opposed foreu :md-aft springswhich are connected euch ai', one end to the stick, und whereof one isconnected at its other end to the aeroplane, u third tension-regulatingdevice connecting the other enel of the other fo1c-anclaft spring to theaeroplano, means forV operatively connecting 'the stick to the elevatorof the aeroplane to control the same hy."oreand-ofi; movements, andmeans for operotively connecting the stick to the ailerons of theaeroplane for controlling 'the same by lateral movements of the stick.

In 'testimony whereof' I alix my signuture THOMAS JAMES TAPLIN, JR.

